Improvement of sanitary conditions by installations of improved toilets whichorient to nature in a village of ethnic minorities in Northern Thailand / 国際保健医療

ABSTRACT

Installation of toilet is an important issue for improvement of sanitary condition all over the developing countries. A Japanese NGO is trying to improve toilets which are planned to fit the rural environment in a village of an ethnic minority, the Hmong people, in northern Thailand. The toilet installed in a nursery school can produce methane gas from septic tank for cooking of lunch. The overflowed water from septic tank is able to be used for fertilizer in a kitchen garden. The concept of this toilet is the minimization of the release of carbon dioxide in the human life by the ecological use of human faces and urine that consume much energy for appropriate treatment in developed countries. The system will be developed to be one of an ideal model of the recycle system of natural resource. This project of innovating toilet is useful for the educational materials of the model of sustainable development for not only for under developing countries but also for developed countries in that it reminds us the traditional culture of utilization of human feces in Japan.